Types of Furnaces Based on Airflow Direction

What are the different classifications of furnaces based on the direction of airflow?

a) Downflow furnace b) Upflow furnace c) Horizontal furnace d) Lowboy furnace

Answer:

The furnace classification by the direction of airflow includes upflow, downflow, horizontal, and lowboy furnaces.

When it comes to classifying furnaces based on the direction of airflow, there are several types to consider. The four main classifications are upflow, downflow, horizontal, and lowboy furnaces.

Upflow furnaces are designed in a way where heated air exits from the top, while air is pushed in from the bottom. This type of furnace is commonly used in many residential settings.

Downflow furnaces, on the other hand, have the blower pushing air in from the top, with the heated air exiting from the bottom. These are often installed in spaces where an upflow furnace won't fit, such as crawl spaces or smaller areas.

Horizontal furnaces are unique in that they are designed to lie on their side, pushing air out horizontally. These are commonly used in areas where vertical installation is not feasible, such as attics with limited headroom.

A lowboy furnace has a different configuration, with the blower located below the heat exchanger. These are typically used in situations where space constraints prevent the installation of a standard upright furnace.

Each type of furnace has its own set of advantages and considerations, but all are designed to efficiently heat a space based on the airflow direction specific to their classification.